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422 | giacomo | 1 | /* |
2 | * Linux ARCnet driver - COM20020 chipset support - function declarations |
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3 | * |
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4 | * Written 1997 by David Woodhouse. |
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5 | * Written 1994-1999 by Avery Pennarun. |
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6 | * Derived from skeleton.c by Donald Becker. |
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7 | * |
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8 | * Special thanks to Contemporary Controls, Inc. (www.ccontrols.com) |
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9 | * for sponsoring the further development of this driver. |
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10 | * |
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11 | * ********************** |
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12 | * |
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13 | * The original copyright of skeleton.c was as follows: |
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14 | * |
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15 | * skeleton.c Written 1993 by Donald Becker. |
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16 | * Copyright 1993 United States Government as represented by the |
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17 | * Director, National Security Agency. This software may only be used |
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18 | * and distributed according to the terms of the GNU General Public License as |
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19 | * modified by SRC, incorporated herein by reference. |
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20 | * |
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21 | * ********************** |
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22 | * |
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23 | * For more details, see drivers/net/arcnet.c |
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24 | * |
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25 | * ********************** |
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26 | */ |
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27 | #ifndef __COM20020_H |
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28 | #define __COM20020_H |
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29 | |||
30 | int com20020_check(struct net_device *dev); |
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31 | int com20020_found(struct net_device *dev, int shared); |
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32 | void com20020_remove(struct net_device *dev); |
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33 | |||
34 | /* The number of low I/O ports used by the card. */ |
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35 | #define ARCNET_TOTAL_SIZE 8 |
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36 | |||
37 | /* various register addresses */ |
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38 | #define _INTMASK (ioaddr+0) /* writable */ |
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39 | #define _STATUS (ioaddr+0) /* readable */ |
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40 | #define _COMMAND (ioaddr+1) /* standard arcnet commands */ |
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41 | #define _DIAGSTAT (ioaddr+1) /* diagnostic status register */ |
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42 | #define _ADDR_HI (ioaddr+2) /* control registers for IO-mapped memory */ |
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43 | #define _ADDR_LO (ioaddr+3) |
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44 | #define _MEMDATA (ioaddr+4) /* data port for IO-mapped memory */ |
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45 | #define _SUBADR (ioaddr+5) /* the extended port _XREG refers to */ |
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46 | #define _CONFIG (ioaddr+6) /* configuration register */ |
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47 | #define _XREG (ioaddr+7) /* extra registers (indexed by _CONFIG |
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48 | or _SUBADR) */ |
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49 | |||
50 | /* in the ADDR_HI register */ |
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51 | #define RDDATAflag 0x80 /* next access is a read (not a write) */ |
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52 | |||
53 | /* in the DIAGSTAT register */ |
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54 | #define NEWNXTIDflag 0x02 /* ID to which token is passed has changed */ |
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55 | |||
56 | /* in the CONFIG register */ |
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57 | #define RESETcfg 0x80 /* put card in reset state */ |
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58 | #define TXENcfg 0x20 /* enable TX */ |
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59 | |||
60 | /* in SETUP register */ |
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61 | #define PROMISCset 0x10 /* enable RCV_ALL */ |
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62 | #define P1MODE 0x80 /* enable P1-MODE for Backplane */ |
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63 | #define SLOWARB 0x01 /* enable Slow Arbitration for >=5Mbps */ |
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64 | |||
65 | /* COM2002x */ |
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66 | #define SUB_TENTATIVE 0 /* tentative node ID */ |
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67 | #define SUB_NODE 1 /* node ID */ |
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68 | #define SUB_SETUP1 2 /* various options */ |
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69 | #define SUB_TEST 3 /* test/diag register */ |
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70 | |||
71 | /* COM20022 only */ |
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72 | #define SUB_SETUP2 4 /* sundry options */ |
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73 | #define SUB_BUSCTL 5 /* bus control options */ |
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74 | #define SUB_DMACOUNT 6 /* DMA count options */ |
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75 | |||
76 | #define SET_SUBADR(x) do { \ |
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77 | if ((x) < 4) \ |
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78 | { \ |
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79 | lp->config = (lp->config & ~0x03) | (x); \ |
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80 | SETCONF; \ |
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81 | } \ |
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82 | else \ |
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83 | { \ |
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84 | outb(x, _SUBADR); \ |
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85 | } \ |
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86 | } while (0) |
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87 | |||
88 | #undef ARCRESET |
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89 | #undef ASTATUS |
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90 | #undef ACOMMAND |
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91 | #undef AINTMASK |
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92 | |||
93 | #define ARCRESET { outb(lp->config | 0x80, _CONFIG); \ |
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94 | udelay(5); \ |
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95 | outb(lp->config , _CONFIG); \ |
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96 | } |
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97 | #define ARCRESET0 { outb(0x18 | 0x80, _CONFIG); \ |
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98 | udelay(5); \ |
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99 | outb(0x18 , _CONFIG); \ |
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100 | } |
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101 | |||
102 | #define ASTATUS() inb(_STATUS) |
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103 | #define ACOMMAND(cmd) outb((cmd),_COMMAND) |
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104 | #define AINTMASK(msk) outb((msk),_INTMASK) |
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105 | |||
106 | #define SETCONF outb(lp->config, _CONFIG) |
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107 | |||
108 | #endif /* __COM20020_H */ |